Electrical and Electronics Maintenance Engineer Interview Questions and Answers

Interlocking two ACB transformers and DG involves using a control circuit to ensure safe and efficient power transfer.

• Use a control circuit to monitor the status of the transformers and DG

• Ensure that only one source of power is active at a time

• Use interlocks to prevent accidental switching of power sources

• Test the interlocks regularly to ensure they are functioning properly

Interlocking two ACBs can be done using mechanical or electrical interlocks.

• Mechanical interlocks use physical mechanisms to prevent both ACBs from being closed at the same time.

• Electrical interlocks use control circuits to ensure that only one ACB can be closed at a time.

• Interlocks can also be achieved using a combination of mechanical and electrical methods.

• Interlocking is important to prevent parallel operation of ACBs, which can cause damage to the system and endanger per...read more